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harina [27]
3 years ago
15

Please help!!!!!!!!!!!!

Mathematics
1 answer:
vladimir2022 [97]3 years ago
7 0
Use the distance formula:

x2 is 1 and x1 is -2
y2 is root7 and y1 is 0

Point (X1,Y1) is basically the coordinate of the centre point of the circle

Point (X2,Y2) is the point that on the circle

So if the point(1,root7) is on the circle, the final distance you get should be the radius of the circle, which is 4 units

Calculate it and you can get the answer that is 4

Therefore the point (1,root7) is on the circle
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Zach has a terrarium with the dimensions of 20 by 8 and the terrarium was filled with 3 inches of sand.Zach gets a new terrarium
Vladimir79 [104]

Answer: the sand in the new terrarium is 2 inches deep.

Step-by-step explanation:

Zach has a terrarium with the dimensions of 20 by 8 and the terrarium was filled with 3 inches of sand. It means that the volume of sand that this terrarium contains is

20 × 8 × 3 = 480 inches³

Zach gets a new terrarium that is larger with the dimensions of 10 by 24. If Zach moved the existing sand in the new terrarium and the height of the sand is represented by h, then the volume of sand into he new terrarium is

10 × 24 × h = 240h

Since the volume of sand in both terrariums is equal, then

240h = 480

h = 480/240

h = 2 inches

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3 years ago
Find the length of the missing leg. Round to the nearest tenth if necessary
mestny [16]
I’m going to use Pythagorus theorem for his question. // firstly I would do 20^2 + 16^2 = 656 // we them square root that number, so the square root of 656 is 25.61, meaning the missing length is 25.6
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Madison read 1/2 of a book in the morning, and she read some more at night. By the end of the day she still had 2/5 of the book
chubhunter [2.5K]

Answer: 1/10

Step-by-step explanation:

At the end of the day, she still had 2/5 of the book to read. Which meant that she had read 3/5 of the book. Since she read 1/2 of the book in the day, we would read 3/5 - 1/2 = 6/10 - 5/10 = 1/10 of the book at night.

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3 years ago
Can someone write −4 and (6, 4) in standard form. -4 is the slope. I need it as one answer.
steposvetlana [31]

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y = -4x + 28

Step-by-step explanation:

yeah-ya........ right?

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3 years ago
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Oksanka [162]

Answer:

The cost per print expressed as a slope is 7.125

Step-by-step explanation:

To calculate the cost per print, let’s envision that we have a graphical representation of cost of posters against the number of posters

We have the cost on the y-axis and the number of posters on the x axis

With the information given in the question, we shall be having two data points

Point 1 = (32,126)

point 2 = (48,240)

Now to find the slope of the line which is cost per print, we make use of both points in the slope equation.

Mathematically, slope m will be

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Thus, we have;

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